Glossary
Searchable terminology from accessibility, web standards, and related fields.
6660 terms — page 251 of 333
- Scrubbing (Video Scrubbing, Timeline Scrubbing)
- The interaction of dragging a playhead across a video or audio timeline to preview content at arbitrary positions, typically with real-time visual or audio feedback. Scrubbing is ubiquitous in video e…
- Scrupulosity (Moral OCD, Religious OCD)
- A subtype of Obsessive-Compulsive Disorder (OCD) characterized by obsessions about having violated moral, ethical, or religious standards — for example, fear of having sinned, of having been dishonest…
- Search Engine Accessibility (Accessible Search)
- The usability and accessibility of search engine interfaces and results for people with disabilities, particularly blind and visually impaired users who interact via screen readers. Search engines pre…
- Search Engine Optimization (SEO)
- Search engine optimization (SEO) is the practice of improving a website's visibility and ranking in search engine results through techniques such as using descriptive page titles, meaningful headings,…
- Search-by-Feature (Feature-based sign search, Linguistic-property search)
- A sign-language dictionary search technique in which a user manually selects linguistic properties of the target sign — typically handshape, body-relative location, movement type, orientation, and num…
- Search-by-Video (Video-based search, Search by video)
- A sign-language dictionary search technique in which a user performs a sign into a webcam or camera and computer-vision-based sign recognition returns a ranked list of candidate dictionary entries. Se…
- Second Language Acquisition (SLA, L2 Acquisition)
- The process by which a person learns a language other than their first (native) language. In deaf education and accessibility, second language acquisition theory is particularly relevant because writt…
- Section 255 (Telecommunications Act Section 255)
- A section of the US Telecommunications Act of 1996 that requires telecommunications equipment and services to be accessible to people with disabilities, where readily achievable. Section 255 applies t…
- Section 504 (Section 504 of the Rehabilitation Act)
- Section 504 of the Rehabilitation Act of 1973 is a US federal civil rights law that prohibits discrimination on the basis of disability in any program or activity receiving federal financial assistanc…
- Section 508 (508 Compliance, Rehabilitation Act Section 508)
- A provision of the United States Rehabilitation Act that requires federal agencies to make their electronic and information technology accessible to people with disabilities. Updated in 2017 (the "Sec…
- Sedentary Behaviour (Sedentary Lifestyle, Physical Inactivity)
- Any waking behaviour characterised by low energy expenditure while in a sitting, reclining, or lying posture, such as prolonged sitting at a desk, watching television, or using a computer. Sedentary b…
- See-Through Display (Optical See-Through Display, Transparent Display, OST Display)
- A display technology that allows users to view digital content overlaid on the real world by projecting images onto a transparent or semi-transparent surface. Unlike opaque (occlusive) displays that b…
- Seeing AI
- A free AI-powered app developed by Microsoft for blind and low vision users that uses computer vision and AI to describe the visual world. Features include reading short text, documents, and handwriti…
- Segmentation Problem (Stroke Segmentation, Input Segmentation, Gesture Segmentation)
- The segmentation problem in text entry and gesture recognition refers to the challenge of determining where one input unit (such as a letter, word, or gesture) ends and the next begins when there is n…
- Segregated Education (Separate Schooling, Special Schooling)
- An educational model where students with disabilities are educated in separate institutions or classrooms apart from their non-disabled peers. While segregated schools like residential schools for the…
- Seizure (Epileptic Seizure, Convulsion)
- A sudden, uncontrolled burst of electrical activity in the brain that can cause changes in behavior, movements, feelings, or consciousness. Seizures vary widely in type and severity, from brief lapses…
- Selection Keyboard (On-Screen Keyboard, Scanning Keyboard, Virtual Keyboard)
- A text entry interface where characters are displayed in a grid on screen and users select them by navigating a cursor or highlight to the desired character using an alternative input device such as a…
- Selective Attention (Focused Attention)
- The cognitive ability to focus on a specific stimulus or task while filtering out irrelevant distractions. In accessibility and inclusive design, understanding selective attention is critical for crea…
- Selective Disclosure
- A strategy where a person carefully controls which aspects of their identity they reveal to different stakeholders, choosing to disclose some identities while obscuring others based on anticipated con…
- Selective Dorsal Rhizotomy (SDR, Dorsal Rhizotomy)
- A neurosurgical procedure used to reduce spasticity in the legs and sometimes arms of people with cerebral palsy, by selectively cutting sensory nerve fibers in the spinal cord that contribute to abno…